Kulab () is a village in Bala Velayat Rural District of Bala Velayat District in Bakharz County, Razavi Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 92 in 22 households, when it was in the former Bakharz District of Taybad County. The following census in 2011 counted 124 people in 30 households, by which time the district had been separated from the county in the establishment of Bakharz County. The rural district was transferred to the new Bala Velayat District. The 2016 census measured the population of the village as 127 people in 42 households.